The Monaco royal family, and the House of Grimaldi, consists of Albert II of Monaco, Sovereign Prince of Monaco, his wife Charlene, Princess of Monaco and their children twins, Princess Gabriella, and Jacques, Hereditary Prince of Monaco, born on 10 December 2014. Jacques is the heir apparent to the throne. Albert has two sisters Caroline, Princess of Hanover and Princess Stéphanie of Monaco. Albert is the son and successor of Prince Rainier III and the princess consort Grace of Monaco, formerly Grace Kelly. The Monaco royal family dates back to 1604.